"In my opinion, I don't think the news story is them lasting together; I think the news story is: What happens if they fall apart?" Keselowski said Wednesday on ESPN’s Pardon The Interruption. "Because that's going to be way better of a story."

Rumors spread about Patrick and Stenhouse throughout the offseason, and the couple confirmed to the media last month that they are indeed dating. Patrick has filed for divorce from her husband, Paul Hospenthal.

Both Patrick and Stenhouse have said they don’t expect their relationship to affect their performance on the track or how they race each other. Both will be rookies in the Sprint Cup Series this season.

Keselowski said the real drama between Patrick and Stenhouse will occur if they have a falling out and then try to retaliate against each other on the track.

"Like, 'Last time I was around, you didn't take the laundry out and that's why we broke up and I'm going to wreck you,'" he said. "Or 'You stuck me with the bill.' I mean, that kind of stuff, to me, is going to be way more exciting than them actually dating."

Keselowski acknowledges that the relationship between the two NASCAR stars is a big story.

"I think our fan base really enjoys the human interest side," he said. "So any relationship between drivers, whether it's good or bad, or dating, is going to be of interest. So it is a huge story without a doubt, but the real story will be if it goes wrong, what happens then."